材料力学简介英文
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1、The Introduction of Mechanics of Materials陈继乐1.The research object of Mechanics of Materials2.The task of Mechanics of Materials and its relation with engineering3.The properties and the fundmental assumptions of the solid deformable bodies4.Basic types of the deformation of rods1.The research objec
2、t of Mechanics of Materials Structure members Classification of structure members:plate or shell clump bodybar or rod 2.The task of Mechanics of Materials and its relation with engineering Strength,Rigidity,Stability Strength:Capacity to resist failure of a component or an element.Rigidity:Capacity
3、to resist deformations of a component or an element.Stability:Capacity to remain the original state in equilibrium of a component or an element.The tasks of mechanics of materials Under the request that the strength,rigidity,stability are satisfied,offer the necessary theoretical foundation and calc
4、ulation method for determining reasonable shapes and dimensions,choosing proper materials for the components at the most economic price.3.The properties and the fundmental assumptions of the solid deformable bodies1.Continuity:The material of a solid deformable body is continuously distributed over
5、its volume so that there are not any cracks,defects or holes etc.2.Homogeneity:The material of the solid deformable body is homogeneously distributed over its volume.3.Isotropy:The mechanical properties are the same in all directions at a point.4.Small deformations:The deformations for a solid deformable caused by external forces are very small compared with the dimensions of the body.Thus whenwe study the equilibrium and motion of the solid deformable body,the deformation of the body may be neglected.4.Basic types of the deformation of rods1.Axial tension 2.Shear 3.Torsion 4.Bending
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